PROBLEM TO BE SOLVED: To provide an implanted artificial hearing aid that never damages a portion other than an implantation target region when implanted in the cochlea, and is highly safe.SOLUTION: An artificial hearing aid of the present disclosure includes a cochlea implantation part 1, an acoustic wave resonator 2, and a flexible plate-like part 3 for connecting the interval thereof. Before the insert to the cochlea, the artificial hearing aid has a storage form 1Y folded so that a cochlea implantation part 1' may get closer to the acoustic wave resonator 2 by bending of the flexible plate-like part 3. After the insert to the cochlea, the artificial hearing aid can be changed into an implant preparation form 1X where the bending of the flexible plate-like part 3 is broken off, and the cochlea implantation part 1 linearly extends from the acoustic wave resonator 2 toward the implantation predetermined position of the cochlea interior wall.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】蝸牛内への埋植時に、埋植対象部位以外の部分を傷付けることのない、安全性の高い埋め込み型の人工聴覚器を提供する。【解決手段】本開示の人工聴覚器は、蝸牛埋植部1と音波共振部2と、間を繋ぐ可撓性板状部3とを備え、蝸牛への挿入前には、可撓性板状部3の屈曲により蝸牛埋植部1’が音波共振部2に近づくよう折り畳まれた収納形態1Yであり、蝸牛への挿入後には、可撓性板状部3の屈曲が解消されて、蝸牛埋植部1が音波共振部2から蝸牛内壁の埋植予定位置に向かって直線状に延びる埋植準備形態1Xに、形態変化が可能である。【選択図】図1